AttributeError: 'Display' object has no attribute 'GetSizeTuple'

[joongsoo]

Hi. I run gui.py

Traceback (most recent call last):
File "gui.py", line 144, in
controller = Controller(app)
File "gui.py", line 59, in init
self.main_view = MainView(None)
File "/Users/st/Downloads/pyNES-master/view/wx_view.py", line 12, in init
self.display = Display(parent=self)
File "/Users/st/Downloads/pyNES-master/view/game_display.py", line 23, in init
self.size = self.GetSizeTuple()
AttributeError: 'Display' object has no attribute 'GetSizeTuple'
Segmentation fault: 11